You would think there would be a wafl_scan_reallocate option that would re-stripe across a smaller subset of disks in the aggregate (if enough space existed), leaving remaining drives zero'd out and able to be removed or re-purposed. Come on, you WAFL geniuses, get to it! :-)
Glenn (The other one)
-----Original Message----- From: owner-toasters@mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Chris Thompson Sent: Tuesday, October 10, 2006 1:52 PM To: Alan Biren Cc: toasters@mathworks.com Subject: Re: Removing a disk from an aggregate
ABiren@asisystem.com (Alan Biren) writes:
Does anyone know of a way to permanently remove a disk from one a RAID
Group in an Aggregate.
This used to be a perennial topic of discussion on the toasters list. I see we had threads about it in August 2000, August 2001, and August 2002. (Of course, it was "shrinking volumes" rather than "shrinking aggregates" in those days.)
I even exchanged a few blue-sky ideas about how it might be implemented with some NetApp personnel. But I think that NetApp have yet to be convinced that there is sufficient customer demand to embark on what would be a quite ambitious modification.
If you want to try and convince them otherwise, you could always try "if Veritas can do it, why can't NetApp?".
One of my Administrators create an aggregate with raidsize of 14 disks
and used all available disks to fill the raid group. There are now no
spares in the system. The current aggregate already has a production volume on it so destroying the aggregate is really not an option.
Don't you have to use the "-f" option on "aggr add" or "aggr create" to use up the last spare disk?
-- Chris Thompson Email: cet1@cam.ac.uk